Experimental Design: In their study, [1]} made use of an experimental paradigm known as the horizon task [2]}. Each task was based on a two-armed bandit problem and involves four forced-choice trials, followed by either one or six free-choice trials. Participants were aware of the number of remaining choices and could use this information to guide their behavior. The mean reward of one of the arms was drawn randomly from \([40, 60]\) , while the mean reward for the other was determined by sampling the difference to the first arm from \([4, 8, 12, 20, 30]\) . The arrangement of arms and the sign of the difference was randomized. In each time-step, the observed reward was sampled from a normal distribution with the corresponding mean value and a standard deviation of 8. The addition of forced-choice trials allowed to control the amount of information that was available to participants. They either provided an equal amount of information for both arms (i.e., two observations each) or an unequal amount of information (i.e., a single observation from one arm, three from the other). In total, [1]} collected data for 147 participants between the ages \(12.08\)  and 28, completing 160 bandit tasks each.
